44.____the house was started before she went to africa and now it is still under construction.
a.working b.working at c.working on d. work on选D? Ｃ不行吗？
１．---jack?
--- _______.
a. present,sir. b.i am ,sir, c.here, sir d.yes, sir,为什么是Ａ，别的不行吗？

８．the great use of the school education is not so much to teach you things ____ to teach the art of learning.
a. rather than b.than c.nor d.as 为什么是Ｄ

３２．there is a saying which ___like this : " still waters run___."
a.goes, deeply b.comes , deep c.goes, deep d.comes , deeply 为什么是Ｃ？

第一题的work是个名词,work on sth指关于某事的工作,一个工程,这个机构本身就可以做主语
wroking on是非谓语,你说它的逻辑主语是谁? 她去非洲跟弄房子是两回事.不能说是她working on the house

-Jack?
-present,sir.
到.sir.
是点名时的回答

比较状语从句用as

go有"说"的意思,常常用于指出书上的话
deep可以是形容词也可以是副词,做副词时是客观的,可见的
deeply是抽象的,一般指感情上的,认识上的
PS题目有点错误,still _water runs_ deep

参考文献：怎么跟我共享资料那套题一模一样...